On Tue, Dec 17, 2002 at 11:35:27AM +0900, NAKAMURA, Hiroshi wrote:
> 
> We checked above site to find that our new color scheme
> is not easy for protanope (another form of red/green color deficit)
> person.  We still continues to search how should we do.
> 
> Since it seems to take a few days, I droped color definitions
> from the css temporalily.

You did not change the Japanese version; no color-blind people in Japan? ;-) (*)

I found this: 
http://webdesign.about.com/library/weekly/aa080800a.htm
it might give you some hints.


> Thank you for all about discussing this issue.

(*) Surely not, for the standard tests to detect color-blindness were
 developed by Dr. Shinobu Ishihara

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